The Benefit of a Pressure-Assist Toilet

What is a Pressure Assisted Toilet?

Pressure-assisted toilets have a tank inside of another tank so that a large amount of air pressure is created between the two tanks. This pressure makes it possible for more water to stay inside the toilet bowl resulting in a cleaner toilet and creating additional air pressure to aid toilet flushing.

What’s Inside a Pressure-Assist Toilet?

Essentially, there are two main kinds of toilets: gravity-flow and pressure-assist. The most common is the gravity-flow toilet, a basic type of toilet that contains water inside the toilet tank. A pressure-assist toilet is different from a gravity-flow toilet in one department – the inside of the toilet tank. Here are the Pros and Cons of having a Pressure - Assist Toilet:


  • Lower maintenance. A pressure-assist toilet contains fewer moving parts, meaning it will be less likely to break down and require servicing.
  • Efficiency. Pressure-assist toilets are much more efficient, thanks to their forceful flush. There is hardly ever a need to flush twice and toilet clogs are rare, even in aging plumbing pipes.
  • No condensation. Lastly, many homeowners and business owners choose pressure-assisted toilets because these toilets are not impacted by humid weather (readers in Miami know what I'm talking about). That’s because the tank-in-tank design reduces any amount of sweat.
  • Water savings. These toilets help you save water. Each flush of the pressure-assist toilet uses 1.1-1.2 gallons, compared to dual-flush gravity-flow at 1.3 gallons or single-flow (1.6). That can add up to 4,000 gallons annually.


  • Availability of parts. The inner workings of a pressure-assist toilet are not the same as a gravity-flow toilet. Because most hardware stores don’t stock these parts regularly, replacing or repairing parts components of a pressurized toilet is somewhat difficult.
  • The difficulty of flushing. The flush lever on a pressure-assist toilet must be pushed with more force than on a gravity-flow fixture. This may make it difficult for a young child or a strength-impaired adult to operate.
  • Noise. Pressure-assist toilets are popular in industrial settings since they are far more efficient than gravity-flow toilets. However, most homeowners do not purchase pressure-assist toilets since these toilets tend to be rather loud.
  • Price. Pressure-assist toilets are more expensive than regular gravity-flow toilets. While a standard gravity-flow toilet can be purchased for around $120 to $300, a pressure-assist toilet may cost as much as $700.

At JCN Plumbing, we can help you choose which option is best for you, based on the situation. Our experienced team of experts can help you with the installation of a pressure-assisted toilet.

Call today for an estimate - (305) 770-6860